[feat] reload firewall with SIGUSR1

- Resolves: riseup_vpn#46

1 files changed, 34 insertions, 0 deletions

diff --git a/signal_unix.go b/signal_unix.go
new file mode 100644
index 0000000..37b3908
--- /dev/null
+++ b/signal_unix.go
@@ -0,0 +1,34 @@
+// +build !windows
+// Copyright (C) 2018 LEAP
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package main
+
+import (
+	"os"
+	"os/signal"
+	"syscall"
+
+	"0xacab.org/leap/bitmask-systray/bitmask"
+)
+
+func listenSignals(bm bitmask.Bitmask) {
+	sigusrCh := make(chan os.Signal, 1)
+	signal.Notify(sigusrCh, syscall.SIGUSR1)
+
+	for range sigusrCh {
+		bm.ReloadFirewall()
+	}
+}